Machine for operating on shoes.



F. B. KEALL & J. GOULDBOURN.

MAUHINE FOB, OPERATING 0N SHOES.

APPLICATION FILED JUNE 14, 1910.

Patented Oct. 24, 1911.

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F. B. KEALL & J. GOULDBOURN.

MACHINE FOR OPERATING 0N SHOES.

APPLIGATION FILED JUNE 14, 1910.

' Patented Oct. 24, 1 91 1.

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COLUMBIA PLANOGR/WH CO..WASIHNOTON, D. C.

F. B. KEALL & J. GOULDBOURN. MACHINE FOR OPERATING 0N SHOES. APPLICATIONFILED 11111314, 1910.

1,006,484. Patented Oct. 24, 1911.

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F. B. KEALL & J. GOULDBOURN. MACHINE FOR OPERATING 0N SHOES. APPLICATIONFILED JUNE 14, 1910.

1,006,484. Patented Oct. 24, 1911.

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UNITED STATES PATENT OFFICE.

FRANK BYCROFT KEALL AND JOSEPH GOULDBOURN, OF LEICESTER, ENGLAND, AS-

SIGNORS TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY,

A CORPORATION OF NEW JERSEY.

MACHINE FOR OPERATING ON SHOES.

To all whom it may concern Be it known that we, FRANK B. KEALL andJOSEPH GoULoBoURN, subjects of the King of England, and residing atLeicester, Leicestershire, England, have invented certain Improvementsin Machines for Operating on Shoes, of which the following description,in connection with the accompany ing drawings, is a specification, likereference characters on the drawings indicating like parts in theseveral figures.

This invention relates to machines of the general type disclosed in theUnited States applications Serial No. 455,211, filed September 28, 1908,and No. 505,826, filed July 3, 1909.

Machines of this general character comprise a tool and a work supportarranged to have relative movement to cause the point of operation ofthe tool to be transferred along the work, and a correcting mechanismwhich operates during such transfer to control automatically therelative positions of the tool and work in accordance with changes inthe direction of the path along which it is desired to have the tooloperate.

In each of the machines shown and described in the applications aboveidentified, the correcting mechanism bears directly upon the work andeffects adjustment of the relative positioning of the tool and work inaccordance with variations in a contour of the work itself. When thetool and correcting means are disengaged from the work, it frequentlyhappens that they are moved into an abnormal relationship to the workand consequently considerable care must be exercised in again bringingthem into operative engagement with the work. Furthermore, this movementof the correcting means and tool out of normal position causes anappreciable loss of time in starting the machine into operation againafter the work has been changed.

It is an important object of this invention to provide a machine of thegeneral character referred to, wherein the tool and work have relativetraverse and wherein during such traverse correcting means operates todetermine the successive relative positions of the tool and work inacordance with changes in the path along which it is desired to have thetool operate, with means acting Specification of Letters Patent.

Application filed June 14, 1910.

Patented Oct. 24, 1911.

Serial No. 566,767.

automatically upon the disengagement of the tool from the work to insurethe return of the work and correcting means to a predetermined normalrelationship.

It is a further object of the invention to provide, in a machine of thecharacter justdescribed, means operating automatically upon thecessation of contact between the tool and work to insure the return ofthe work and tool to a predetermined normal relationship.

In the illustrated embodiment of the invention the correcting mechanismcomprises two feelers bearing upon the work and so disposed withrelation to each other and to the work that as the tool operates alongthe work changes in the contour engaged by the feelers alter therelationship of the feelers and thereby actuate a mechanism that adjuststhe tool so as to keep it in a definite angular relationship to thework. The feelers and tool are mounted on a common support, and thefeeler controlled mechanism is arranged to move the support, and with itthe tool and feelers, in effecting the adjustment ust described.

This invention provides a mechanism which becomes operative upon thecessation of contact between the work and the tool and feelers to effecta relative displacement of the feelers, to an extent proportional to thedisplacement of said support from its pre determined normal position,and in a direction such that the feeler controlled mechanism will beactuated to move the support toward its normal position. During thismovement of the support the relative displacement of the feelers isautomatically reduced to zero so that upon the arrival of the feelersand tool in their normal positions the movement of the support ceases.When the machine is in inoperative condition, therefore, the tool andfeelers will always be found in a predetermined position"; and nospecial care will be required in bringing them into contact with thework again to resume oper ation.

Referring now to the accompanying drawings,Figure 1 is a view in sideelevation, with parts of the casing broken away, of the automatic edgesetting machine shown in the United States application Serial No.505,826, but modified in accordance with the present invention; Fig. 2is a rear elevation ofsaid broken away; Fig. 3 is a plan view partly insection of thetool carrying head with the mechanism of this inventionapplied thereto; Fig. 4 is a vertical sectional view of said head; Fig.5 is a partial plan view of the tool supporting head showing the feelersand the mechanism of the present invention; Fig. 6 is a side elevationof the parts'shown in Fig. 5;'and Fig. 7 is a perspective view of one ofthe feelers and its cooperating stop.

The construction and operation of the machine shown in the drawings aredescribed in detail in application Serial N 0. 505,826 above referredto.

A brief description of certain features only of this machine isnecessary to a thorough understanding of the present invention.

The work to be operated upon, inthis instance a shoe, is clamped in awork support 2 carried by a vertical post 4 which is so mounted that thework support may have universal movement in a horizontal plane. The postis secured rigidly to a cam 6'and a hydraulic mechanism operates the camin a manner such that the shoe is moved past the edge setting tool 8 inapproximately the path desired for the proper operation of the tool onthe sole edge.

The mounting for the edge setting tool comprises a tool holder 10 havinga shank 12 slidably positioned in a T-shaped piece 14, the stem of thepiece 14 being fulcrumed in an extension 16 from a sleeve 18 that isrotatably mounted in a bearing frame 20-. The bearing frame is connectedby pivots 22' to two pairs of twin levers 24 and 26. One pair of levers24 are pivoted directly upon a lever 28 fulcrumed in the frame at 30while the other pair of levers 26 are connected to the lever 28 througha bell crank 32 pivoted at 34 to said lever. The other end of the bellcrank 32is connected with the frame. of the machine by anchor link 36.

By this construction the tool holder can be vibrated laterally about theverticalaxis of the T-shaped piece 14; the sleeve 18 and tool holder 10can be angled about the common axis of the shank 12 and the sleeve 18;while the sleeve 18, tool holder 10 and bearing frame 20, during theirlateral and vertical movements in following the sole edge, are

maintained horizontal by the action of the twin links 24 and 26. Theselinks 1n conjunction with the bell crank 32 and link 36 constitute aparallel motion device supporting the bearing frame.

The edge setting tool 8 is vibrated rapidly about the vertical axis ofthe member 14 by connections from a shaft 38 which may be oscillated byany suitable mechanism. This shaft is connected with the tool holder bya universal coupling comprising a yoke 40 which engages the shank 12 ofthe tool holder and a fork 42 that is secured to the shaft 38 and ispivotally connected with the yoke 40 by a pin 44 disposed at rightangles to the shank of the tool holder. Backward thrust of the toolowing to its pressure upon the work is transmitted to the bearing frame20 by a thrust rod 46 seated at one end against a set screw inserted inthe frame 20 and engaging at its other end the bottom of a recess in theshank of the tool holder 12, the point of engagement being located inthe axis of the T-shaped piece 14.

The tool is pressed against the sole edge by a spring 48 that surroundsthe rod 50 and abuts at one end against a collar 52 threaded on to therod and at its other end against an abutment 54 which is slidable on therod and is pivoted to the lever 28. A starting and stopping lever 56having a pivotal connection with the rod 50 is provided for the purposeof moving the tool into or out of operative engagement with the shoe andalso, by means of suitable connections not shown, for starting orstopping the machine.

As above stated, the hydraulic operating mechanism causes the shoe to bemoved past the tool in approximately the desired path. In order to bringthe tool and work into' exactly the desired relation during successivestages of the edge setting operation, two correcting mechanisms areprovided which operate during the relative traverse of the tool and workto effect adjustments of the relative positioning of the tool and work.One of these correcting mechanisms is arranged to angle the. jack 2 in ahorizontal plane and serves to vary the effect of the hydraulicmechanism above referred to, to cause the shoe to be moved past the toolalong exactly the desired path. This mechanism comprises two feelers 58and 60 engaging the edge of the shoe sole one on each side of the tool 8and a hydraulic mechanism that is actuated by the relative movement ofsaid feelers and operates to angle the jack 2 in such a manner that theline of thrust of the tool 8 is always maintained normal to that contourof the work over which the tool is operating at any instant.

The other correcting mechanism angles the tool and tool holder about anaxis that is normal to the acting face of the tool. This mechanism ismade necessary by the fact that the different portions of the sole edgedo not lie in the same plane, and it operates to maintain the plane ofoscillation of the tool in the plane of that portion of the sole edgeimmediately under operation. mechanism comprises two feelers 62 and 64that bear upon the tread face of the sole adjacent to the tool and areformed as hell crank levers pivoted to extensions 66 and 68 respectivelyof the sleeve 18.

This 1 noted. that the sleeve 18 thus forms a common support for thetool and the feelers. The lower ends of the levers 62 and 64 are coupledby a cross bar 70, and a spring 72 bearing against said bar holds thefeelers in contact with the tread face of the sole. The bar is connectedby a universal coupling and a rod 74 to a valve 76 that controls theadmission of fluid to a cylinder 7 8. A piston working in this cylinderis connected by a thrust rod 80 to an extension 82 from a collar securedto the projection 16 of the sleeve 18. The thrust of the rod 80 isopposed by a coiled spring 84 (see Fig. 4) connecting the sleeve 18 andbearing frame 20.

In operation, when the feelers 62 and 64 are displaced relatively bychanges in the contour of the tread face of the sole, the cross bar 70is angled thus turning the valve 76 and causing the rod 80 to be raisedor lowered by the admission of fluid on one side or the other of thepiston. The sleeve 18 and the tool, tool holder and feelers carriedthereby are thus turned about the axis of the tool holder shank 12 torestore the tool and sole edge to their original angular relationship.This angling of the sleeve also causes the feelers 62 and 64 to bereturned to their normal positions relative to each other, thus againactuating the valve 7 6 and stopping the motion of the piston.

The mechanism thus far described is substantially like that disclosed inthe United States application No. 505,826. It has been found with thisconstruction that when the tool and feelers are moved out of contactwith the work the sleeve 18 which supports them becomes canted into oneor the other of its extreme positions. Consequently, greatcare isrequired and considerable time is lost in again bringing the tool intocontact with the work. According to the present invention, thisdisadvantage is overcome by providing the machine with a pair of stopsthat control the movement of the feelers when they are freed from thework.

One stop 86 is fixed to the rotary sleeve 18, being formed on the underside of a bracket 88 that supports and guides the edge feeler 58, andthis stop engages a boss 90 on the feeler 62 and limits its upwardmovement. It should be understood that both feelers when they aredisengaged from the shoe are moved by the spring 72 to a position abovethe range of positions occupied by them while in contact with the work.The other stop '92 is also carried by the sleeve 18, but is so mountedas to be automatically adjustable thereon. This stop consists of a smalllever pivoted at 94 on the bracket 96 in which the other edge feeler 60is supported and guided. The stop lever 92 does not contact directlywith the feeler 64, but with a stud 98 fixed to the feeler andprojecting into the path of movement of the lower end of the stop lever-The upper end of the lever 92 is pivotally connected to a rod 100 thatpasses through a hole in the flange of the rotary sleeve 18 and bearsupon a cam surface 102 formed in the forward end of the bearing frame20. The rod end is held against said cam by a spring 104 attached to therod and to the flange of the sleeve 18.

The cam surface 102 is so shaped that when the rotary sleeve 18 is inits mid or normal position the adjustable stop 92 will be in its normalposition relative to the fixed stop 86. Any movement of the sleeve outof normal position will cause the rod end to travel along the stationarycam face 102 and thereby will result in displacing the stop 92 in adirection and to an extent depending upon the direction and extent ofmovement of the sleeve.

Upon the disengagement of the tool and feelers from the shoe sole, if ithappens that the sleeve 18 is in its normal position, then the stops 90and 92 also will be in their normal positions and the feelers uponcontact ing with them will not be moved relative to each other. If,however, the sleeve is canted to one side of its normal position, thenthe adjustable stop 92will be held out of its normal position by the rod100 and when the feelers move up into contact with their respectivestops the feeler 64 will be displaced relative to its companion 62. Suchdisplacement will result, as in the normal operation of the machine, inopening the valve 76 and admitting fluid to the cylinder 78 therebycausing the sleeve 18 to be rotated back toward its normal position.This movement is transmitted through the cam 102 and rod 100 to the stop92 thus automatically reducing the relative displacement of the stops tozero, causing the return of the feeler 64 to its normal position, andthrough this movement, again actuating the valve 7 6 to stop the motionof the sleeve. The automatic return of the tool and feelers to theirnormal positions is thus insured upon each disengagement of these partsfrom the work.

While this invention has been described in connection with the machinedisclosed in application No. 505,826 and while the specific embodimentof the invention is herein shown applied to said machine, it should beclearly understood that this description and showing are for purposes ofexplanation and that the invention is not limited to the particular typeof machine shown, but only as such limitations are expressly included inthe appended claims.

Having described our invention, what we claim as new and desire tosecure by Letters Patent of the United States is 1. A machine of theclass described comprising, in combination, a tool, means for prising,in combination, a tool, a work sup port, means forv producing relativemovement of said tool and support to transfer the point of operation ofthe tool along the work, correcting -means arranged to efi'ect relativeadjustment of the tool and work to maintain them in'predeterminedangular relationship during the operation of the tool thereon, and meansarranged to become operative upon the disengagement of the tool from thework to act upon said correcting means to return the tool and worksupport to a predetermined normal relationship.

3. A machine of the class described comprising, in combination, a tool,means for producing relative movement of the tool and work to cause thetool to operate along the work, correcting means'engaging the workduring such operation and operating to effect adjustment of the relativepositioning of the tool and work and means whereby the returnof saidcorrecting means to a predetermined normal position upon the cessationof contact between the work and tool is insured.

4. A machine of the class described comprising, in combination, a tool,a work support, .means for producing relative movement of said tool andsupport to transfer the point of operation of the tool along the work,correcting mechanism including means arranged to engage the work to bemoved thereby relative to the tool, means controlled by said workengaging means for effecting adjustment of the relative positioning ofthe tool and work to cause-the tool to operate along the desired contourof the work, and means for insuring the return of said correctingmechanism and work support to a predetermined normal relationship uponthe disengagement of said work en- I gaging means and tool from thework.

5. A machine of the class described comprising, in combination, a tool,means for producing relative movement of the tool and work to transferthe point of operation of the tool along the work, means actingautomatically during such transfer to determine the relative positionsof the tool and work in accordance with changes in dimotion in diflerentplanes of that path of the work along which it is desired to have thetool operate and means acting automatically upon the cessation ofcontact between the tool and work to return said last mentioned meansand said tool to predetermined normal positions,

6. A machine of the class described comprising, in combination, a tool,a work support, means for producing relative movement of said tool andsupport to transfer the point of operation of the tool along the work,correcting means acting automatically during such transfer to effectadjustment of the relative positioning of the tool and work inaccordance with changes in the direction of that path of the work alongwhich it is desired to have the tool operate, and automatic means forinsuring the return of said work support and the tool and correctingmeans to predetermined normal relationships to each other after the tooland correcting means have been disengaged from the work.

7. A machine of the class described comprising, in combination, a tool,means for producing relative movement of the tool and work to transferthe point of operation of the tool along the work, correcting meansacting automatically during such transfer to determine the relativepositions of tool and work in accordance with changes in direction ofthat path of the work along which it is desired to have the tooloperate, and mechanism operating automatically upon the cessation ofcontact between the tool and work to return said correcting means andsaid tool to predetermined normal positions, said mechanism comprising astop and means operative upon said cessation of contact for effectingrelative motion between the stop and the support for the correctingmeans.

8. A machine of the character described comprising, in combination, atool, means for effecting relative movement of the tool and work totransfer the point of operation of the tool along the work, correctingmeans engaging the work and operating automatically to maintain apredetermined relation between the tool and work during the operation ofthe tool thereon, and means acting automatically through the normalaction of said correcting means to effect the return of said tool andcorrecting means to predetermined normal positions when they aredisengaged from the work.

9. A machine of the character described comprising, in combination, atool, means for producing relative movement of the tool and work totransfer the point of operation of the tool along the work, mechanismoperating automatically during such transfer to maintain the tool andwork in a predetermined angular relationship, said mechanism including afeeler arranged to engage the work and means operating automaticallyupon the disengagementof the feeler from the work to return said feelerto a predetermined normal position.

10. A machine of the character described comprising, in combination, atool, means for producing relative movement of the tool and work totransfer the point of operation of the tool along the work, a feelerarranged to engage the work, mechanism controlled by said feeler foreffecting adjustment of the relative positioning of the tool and workduring successive stages of the operation of the tool on the work andmeans operating automatically upon the disengagement of the tool andfeeler from the work to move the feeler and thereby to actuate saidmechanism in a manner such that the work and tool will be returned to apredetermined normal relationship.

11. A machine of the character described comprising, in combination, atool, a work support, mechanism for producing relative movement of saidtool and support to transfer the point of operation of the tool alongthe work, a pair of feelers engaging the work, mechanism controlled bysaid feelers for effecting angular adjustment of the relativepositioning of the tool and work support to cause the tool to operatealong the desired contour of the work and means operating automaticallyupon the disengagement of the tool and feelers from the work to effect arelative movement of said feelers such that said feeler-controlledmechanism will be actuated to restore the normal angular relationship ofsaid support and tool, said means being so constructed and arranged thatthe relative displacement of the feelers is automatically reduced tozero when the normal relationship is restored.

12. A machine of the character described comprising, in combination, atool, means for producing relative movement of the tool and work totransfer the point of operation of the tool along the work, a pair offeelers engaging the work, a support on which said tool and feelers aremounted for common movement about an axis, mechanism ar ranged to beactuated by the relative movement of said feelers to move said supportabout said axis to effect angular adjustments of the tool relative tothe work, and means operating automatically upon the disengagement ofthe tool and feelers from the work to effect a relative movement of thesaid feelers in a direction such that said mechanism will be actuated tomove said support toward a predetermined normal po sition and to anextent depending upon the displacement of said support from saidpredetermined position.

13. A machine of the character described comprising, in combination, atool, means for producing relative movement of the tool and work totransfer the point of operation of the tool along the work, a pair offeelers engaging the work, a support on which said tool and feelers aremounted for common movement about an axis, mechanism arranged to beactuated by the relative movement of said feelers to move said supportabout said axis to effect angular adjustment-s of the tool relative tothe work, a fixed stop carried by said support to cooperate with one ofsaid feelers, a movable stop carried by the support to cooperate withthe other feeler, means for moving said feelers into engagement withsaid stops when they are disengaged from the work and means controlledby the position of said support for moving one of said stops in adirection such that the relative movement of the feelers producedthereby will actuate said mechanism in a direction to move said support'toward its predetermined normal position.

14. A machine of the class described comprising, in combination, a tool,means for producing relative movement of the tool and work to transferthe point of operation of the tool along the work, a pair of feelersengaging the work, a support on which said tool and feelers are mountedfor common movement about an axis, mechanism arranged to be actuated bythe relative movement of said feelers to move said support about saidaxis to effect angular adjustments of the tool relative to the work, afixed stop carried by said support to engage one of said feelers, alever fulcrumed on said support and having one end positioned forengagement with the other feeler, means for moving said feelers intoengagement with their respective stops when they are disengaged from thework, a rod pivoted to the opposite end of said lever and guided througha hole in said support, a cam engaging the free end of said rod and aspring operating to hold the rod end against said cam.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

FRANK BYGROFT KEALL. JOSEPH GOULDBOURN.

Witnesses KATHERINE PEXTON, ARTHUR ERNEST JERRAN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). G.

